73488438 has 32 divisors (see below), whose sum is σ = 167725920. Its totient is φ = 23833440.

The previous prime is 73488431. The next prime is 73488487. The reversal of 73488438 is 83488437.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 73488393 and 73488402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73488431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16393 + ... + 20388.

It is an arithmetic number, because the mean of its divisors is an integer number (5241435).

Almost surely, 2^73488438 is an apocalyptic number.

73488438 is an abundant number, since it is smaller than the sum of its proper divisors (94237482).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73488438 is a wasteful number, since it uses less digits than its factorization.

73488438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36829 (or 36823 counting only the distinct ones).

The product of its digits is 516096, while the sum is 45.

The square root of 73488438 is about 8572.5397636873. The cubic root of 73488438 is about 418.8639708194.

Subtracting 73488438 from its reverse (83488437), we obtain a palindrome (9999999).

The spelling of 73488438 in words is "seventy-three million, four hundred eighty-eight thousand, four hundred thirty-eight".